Re: IPv6 woes - RFC

Originally, textual IPv4 addresses were maintained centrally by ISI as a file format of HOSTS.TXT, when there was no DNS and users are required to download the current most HOSTS.TXT from ISI through ftp. At that time, there can be, because of consistent central management, just one way to represent them, which is described in rfc810 as: <address> ::= <octet> "." <octet> "." <octet> "." <octet> <octet> ::= <0 to 255 decimal> Obviously, syntax was extended, at least beyond decimal, by a BSD implementation with language C. Masataka Ohta